Does js or jquery inside have something similar to nodejs inside eventEmitter?

  node.js, question

Please give your colleagues some advice!

Are you asking about the mechanism of incident transmission orEventEmitterThe tool itself?

If you are asking for tools, there is one (but not onejqueryProvided), lookEventEmitter

If you are asking about the mechanism of incident propagation, then this is also true:

//Create an event monitor on the window object to monitor hello events
 window.addEventListener('hello', function(e){
 console.log(e);
 }, false);
 
 //Create an Event instance with event name: hello
 var e  = new Event('hello');
 //Trigger this event on the window object
 window.dispatchEvent(e);